E.I.S. Aircraft GmbH (ex Pützer-Sportavia)

Company has moved to Mönchengladbach. No spare parts available anymore.
Mehr Info hier (German).

Alfred Krewikel, former  employee of EIS, has taken over the  remainings and keep some  bits and screws in his garage.  He is also able  to get new parts manufactured  including  Form One document issued  by EIS.